The felony car stop shown was incorrect. The police car in front of the suspect placed the officers in a crossfire situation. Felony car stops are made with all police vehicles to the rear of the suspect.
At the 34 minute mark, after Gray says Green Light. You see him handing Chen her shotgun and going to climb over the wall. Then when the shot changes to the front assault he is standing at the back of the line.
At 11:02, a police car pulls up. Inside, you can see two actors who are not Chen and Harper's usual actors-most likely their stunt doubles.